#define _CRT_SECURE_NO_WARNINGS 1
print("hello world");
print("hello world");
print("hello world");
print("hello world");
print("hello world");
#include<stdio.h>
void test1()
{
	//int arr[6] = { 4,2,8,7,9,4};
	//int arr[6] = { 4,2,8,7,9,9 };
	/*int arr[7] = {4,2,8,7,7,9,9};
	int ret = 0,val1 = 0,val2 = 0;
	for (size_t i = 0; i < sizeof(arr)/sizeof(arr[0]); i++)
	{
		ret ^= arr[i];
	}
	
	for (size_t i = 0; i < sizeof(arr) / sizeof(arr[0]); i++)
	{
		if (arr[i] ^ ret)
			val1 ^= arr[i];
	}
	for (size_t i = 0; i < sizeof(arr) / sizeof(arr[0]); i++)
	{
		if (!(arr[i] ^ ret))
			val2 ^= arr[i];
	}
	printf("ret : %d , val1: %d,val2 :%d", ret,val1,val2);*/

	int a = 9, b = 3;
	//a = a ^ b;
	//b = a ^ b;
	//a = a ^ b;
	a = a ^ (~b);
	printf("%d %d", a, b);
}
int main()
{
	char* str = "abcdefg";
	*str = 'o';
	//test1();

	/*int input = 0;
	scanf("%d",&input);
	while(input)
	{
		if( input==0 || input&(input-1))
		{
			printf("even num!!");
			break;
		}
		else{

			printf("odd num!!");
			break;
		}
	}*/
	return 0;
}

